2.Science by American Association for the Advancement of Science (1883)"The NMR absorption spectrum of this mixture is a superposition of the spectra
observed in fully oxidized and fully reduced cytochrome c. ..."

3.Proceedings of the Society for Experimental Biology and Medicine (1903)"D activity was measured using the xan- oxidase-cytochrome c assay of McCord ...
HC1 and base and cytochrome c were led from the Sigma Chemical Com- Agar was ..."